Addition of Nano-ZrO2 Effects on Microstructures and Properties of WC-8Co Hard Alloys

Lan Sun

doi:10.4028/www.scientific.net/AMR.496.302

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 496Addition of Nano-ZrO2 Effects on Microstructures...

Addition of Nano-ZrO₂ Effects on Microstructures and Properties of WC-8Co Hard Alloys

Abstract:

This paper carries out the research on using the toughening mechanism of phase transition of ZrO₂ to inhibit the WC grain and improve the toughness of the hard alloys. WC–ZrO2–8wt%Co hard metals was mixed with 0-2 wt% nano-ZrO₂ and prepared by conventional sintering (CS) for 2 h at 1440oC to see whether the addition of ZrO₂ could improve densification behavior, the microstructure and mechanical properties of the samples. Experimental results showed that the use of ZrO₂ nanoparticles could decrease the relative density because of the worse wetting effects; it could also inhibit the growth of the grains of WC-Co hardmetal to enhance the hardness of the alloy. The fracture toughness of sample has an increasing tendency as a whole because of the phase transition during the sintering process.

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Periodical:

Advanced Materials Research (Volume 496)

Pages:

302-305

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.496.302

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Online since:

March 2012

Authors:

Lan Sun

Keywords:

Microstructure, Nano-ZrO₂, Phase Transition, Property Analysis, WC-Co

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References

[1] He C X, Wang Y M, Lin C G, etal. Int J Refract Met Hard Mater Vol. 11(1992), p.295.

Google Scholar

[2] Shing T L, Luyckx S, Northrop I. T, Wolff I. Int J Refract Met Hard Mater Vol. 19(2001), p.41.

Google Scholar

[3] Huang S, Yang J H, Lai W H. Powder Metallurgy Technology Vol. 13(1995), p.174 (In Chinese).

Google Scholar

[4] Huang S G, Li L, Vanmeensel K, Van der Biest O, Vleugels J. Int J Refract Met Hard Mater Vol. 25(2007), p.417.

Google Scholar

[5] Lin An, Jingtao Han, and Jun Chen. Journal of University of Science and Technology Beijing, Vol. 13(2006), p.174.

Google Scholar

[6] Taniuchi T, Okada K, Tanase T. In: Kneringer P, Rodhammer P, Wilhartitiz P, eiditors. Proceedings of the 14th international plansee seminar, vol. 2, Reutte, Plansee AG, Austria; 1997. p.644.

Google Scholar

[7] Park Y J, Hwang N M, Yoon DY. Metall Mater Trans A Vol. 27(1996), p.2809.

Google Scholar

[8] Chen Jun, An Lin. Powder metallurgy Technology, Vol. 24(2006), p.192.

Google Scholar

[9] Yan Hong, Dou Mingmin, Li Heping. Journal of ceramics, Vol. 21(2000), p.46.

Google Scholar